Ospf interfaces – RuggedCom RuggedRouter RX1100 User Manual
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17. Configuring Dynamic Routing
Revision 1.14.3
176
RX1000/RX1100™
The Redistribute BGP fields control distribution of routes learned by BGP. When enabled, OSPF will
advertise routes learned by BGP.
The Router ID field sets the router-id to use for the ospf daemon. This value is used as a unique
identifier for the dynamic routing protocol to identify which router sent which route advertisement. If it
is not set here, it defaults to using the Router ID set in
. If this last is not set
either, the Router ID defaults to a string containing the highest IP address assigned to an interface on
the router, in dotted quad notation. It is recommended that this value be set to a unique fixed value
on each router. Note that for the new router-id to take effect, the routing daemon must be restarted.
17.2.4.2. OSPF Interfaces
Figure 17.15. OSPF Interfaces
Parameters specific to one interface are configured here.
Each interface on the router is listed. Clicking on settings displays a menu of configuration options for
that interface. Clicking on status displays the current status of the interface, including link state and
current OSPF status on the interface. If an interface is not part of an area it will show up as OSPF
not enabled on interface.
Clicking “Remove inactive interfaces” purges the list of any interfaces which are no longer configured
on the router.
The Cost field controls the administrative cost of routing over this interface. By default the cost is auto
calculated as the ospf reference bandwidth divided by the core interface bandwidth. By default this
is 100Mbit/10Mbit = cost 10.
The Priority field controls the priority associated with this interface. By default the priority of interfaces
is 1. The router with the highest priority wins elections for designated router for an area.
The Hello Interval field controls how often hello packets are sent to other routers in the area. This
value must match on all router interfaces in an area.
The Dead Interval field controls how long to wait for hello packets before declaring another router
dead. This should normally be set to 4 times the hello interval.